Recently, the China Urban Rail Transit Association (hereinafter referred to as the "China Urban Rail Transit Association") officially released the "Recommended List of the Second Batch of Autonomous Equipment for Urban Rail Transit" at the "Beijing Qingdao International Urban Rail Transit Exhibition and Summit Forum" and the "First China Urban Rail Transit High tech Achievement Fair" (hereinafter referred to as the "Beijing Qingdao Rail Transit Exhibition and First Urban Rail Transit High tech Fair"), Hunan Xiangtou Light Materials Technology Co., Ltd. (hereinafter referred to as "Xiangtou Light Materials") has successfully selected the self-developed "120km/h rail transit vehicle powder metallurgy aluminum matrix composite brake disc". At the same time, the product also made a full appearance at this exhibition and received widespread attention from the industry. This means that Xiangtou Light Materials has officially entered the first phase in the localization of core rail transit equipment.

In recent years, China's urban rail transit has developed rapidly, becoming a major country in the world's urban rail transit. According to data from the China Urban Rail Transit Association, as of the end of 2022, a total of 308 urban rail transit operation lines have been opened in 55 cities in mainland China, with a total length of over 10000 kilometers. The cumulative passenger volume completed throughout the year was nearly 20 billion, playing an important role in building the blueprint of a "transportation powerhouse". Faced with the needs of national strategic development, it is urgent for the rail transit industry to accelerate the resolution of the "bottleneck" problem of equipment technology and accelerate the development of domestic independent equipment.

The brake disc is a key component under the spring of rail transit vehicles. Compared with similar products, Xiangtou Light Materials is the first in the industry to use powder metallurgy technology to prepare 120km/h aluminum based composite brake discs for rail transit vehicles. This solves many bottlenecks such as easy aggregation of reinforcement phase, limited content of reinforcement phase addition, and difficulty in avoiding metallurgical defects in the preparation process of existing aluminum based composite brake discs, achieving raw materials, equipment Fully independent development of core technologies and products. The product has advantages such as lightweight, high-strength, high wear resistance, fatigue resistance, and fast heat dissipation, making innovative breakthroughs in energy conservation, consumption reduction, and improving safety performance. At present, Xiangtou Light Materials has achieved commercial application development and product market introduction in the field of aluminum matrix composite rail brake discs, and has obtained batch orders. The products have been installed, operated, delivered, and debugged in multiple domestic urban rail projects, with good response.

Xiangtou Light Material Rail Transit Brake Discs have successfully been selected for the list of autonomous equipment recommended by the City Association, and have been showcased at the Beijing Qingdao Rail Transit Exhibition and the First Urban Rail Transit High Speed Fair, marking a solid step forward in the independent innovation and development of Xiangtou Light Material in the field of rail transit and further expanding new space for industry cooperation. In the future, Xiangtou Light Materials will take advantage of this selection opportunity and exhibition platform, seize the first mover advantage, seize the window opportunity, and forge ahead on the path of promoting the upgrading and lightweight development of key components of China's transportation equipment, contributing more efforts to accelerate the construction of a strong transportation country.